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Biochemistry

Bacterial protein called catabolic activator protein (CAP) is an example of

Biochemistry, Genetic Code And Regulation /
Question: Bacterial protein called catabolic activator protein (CAP) is an example of
[A].

negative control of gene expression

[B].

positive control of gene expression

[C].

second type of positive control of gene expression

[D].

none of the above

Answer: Option C

Explanation:

No answer description available for this question.

Bacterial protein called catabolic activator protein (CAP) is an example of Read More »

Biochemistry, Genetic Code And Regulation

Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?

Biochemistry, Genetic Code And Regulation /
Question: Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?
[A].

In vitro synthesis of a polypeptide using UUUUU

[B].

Labeled peptide binding to a ribosome

[C].

Mixed co-polymer mRNA synthesis

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon? Read More »

Biochemistry, Genetic Code And Regulation

Crick demonstrated that the genetic code involved three bases and suggested that the code was degenerated. What experimental technique Crick conducted to suggest genetic code degeneration?

Biochemistry, Genetic Code And Regulation /
Question: Crick demonstrated that the genetic code involved three bases and suggested that the code was degenerated. What experimental technique Crick conducted to suggest genetic code degeneration?
[A].

Gel electrophoresis

[B].

Density gradient centrifugation

[C].

Frameshift mutagenesis

[D].

Restriction digests of the rII gene

Answer: Option C

Explanation:

No answer description available for this question.

Crick demonstrated that the genetic code involved three bases and suggested that the code was degenerated. What experimental technique Crick conducted to suggest genetic code degeneration? Read More »

Biochemistry, Genetic Code And Regulation

In isoelectric focusing, proteins are separated on the basis of their

Biochemistry, Gel Electrophoresis /
Question: In isoelectric focusing, proteins are separated on the basis of their
[A].

relative content of positively charged residue only

[B].

relative content of negatively charged residue only

[C].

size

[D].

relative content of positively and negatively charged residue

Answer: Option D

Explanation:

No answer description available for this question.

In isoelectric focusing, proteins are separated on the basis of their Read More »

Biochemistry, Gel Electrophoresis

In SDS-PAGE, the protein sample is first

Biochemistry, Gel Electrophoresis /
Question: In SDS-PAGE, the protein sample is first
[A].

treated with a reducing agent and then with anionic detergent followed by fractionation by electrophoresis

[B].

fractionated by electrophoresis then treated with an oxidizing agent followed by anionic detergent.

[C].

treated with a oxidizing agent and then with anionic detergent followed by fractionation by electrophoresis

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

In SDS-PAGE, the protein sample is first Read More »

Biochemistry, Gel Electrophoresis